Datasheet

ST72321Rx ST72321ARx ST72321Jx

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1 DESCRIPTION

The ST72F321 Flash and ST72321 ROM devices

are members of the ST7 microcontroller family de-

signed for mid-range applications.

All devices are based on a common industry-

standard 8-bit core, featuring an enhanced instruc-

tion set and are available with Flash or ROM pro-

gram memory. The ST7 family architecture offers

both power and flexibility to software developers,

enabling the design of highly efficient and compact

application code.

The on-chip peripherals include an A/D converter,

a PWM Autoreload timer, 2 general purpose tim-

ers, I

C bus, SPI interface and an SCI interface.

For power economy, microcontroller can switch

dynamically into WAIT, SLOW, ACTIVE-HALT or

HALT mode when the application is in idle or

stand-by state.

Typical applications are consumer, home, office

and industrial products.